Pneumatic straw-stacker



(Model. 4 sheets- Sheet 1.

F. P. LANDIS. PNBUMATIG STRAW STAGKER.`

No. 537,691. PatentedApr. 16, 18195.

WVM/Leno e o WM 5516, ftozmen l iugm (Model.) 4 SheeyS-Sheet 2.

F. F.' LANDIS.

. PNBUMATIG STRAW STAGKER. N0.. 537,691.

Patent-Bmpr. 16,1895.

(Model.)

4 sheets-sheetja. I'. F. LANDIS.

PNBUMATIG STRAW SSIIAGKBR.A l No. 537,691. Patented Apr. 16,1895.

I 515121 M abbo/.anew

(Model.) "4`Sheets$heet 4.

F. F. LANDIS. PNEUMATIG STRAW STACKBR.-

Patented Apr. 16, 1895.

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Wff/VESSES UNTTTED STATES PATENT Garros.

FRANK F. LANDIS, OF WAYNESBOROUGH, PENNSYLVANIA.

PNEUMATIC STRAW-STACKER.

SPECIFICATION forming* part Of Letl ers Patent N0.'537,691`, dated April16, 1895.

Application filed January lS, 1895. Serial No. 535,387. (Model.)

T0 @ZZ whom t may concer/'11,.-

Be it known that I, FRANK F. LANDIS, a citizen of the United States,residing at VVaynes` borough, in the county of Franklin and State ofPennsylvania, have invented certain new and useful Improvements inPneumatic Straw-Stackers; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in -the art to which it appertains to make and use thesame.

This invention relates to pneumatic straw stackers; and it consists inthe novel construction and combination of the parts hereinafter fullydescribed and claimed.

In the drawings, Figure l is a side View of the upper part of the strawstacker, showing the telescopic discharge pipe and its operating andsupporting devices. Fig. 2 is a side view showinga modification of thedevice for operating the dclector. Fig. 3 is aplan view ofthe dischargepipe. Figa is an end View of the defiector, showing it forced backwardonto the end ol the discharge pipe. Fig. 5 is a vertical section throughthe discharger casing and the straw chamber, showing the parts whichform the lower part of the straw stacker. Fig. 6 is a front view of thedischarger looking from the straw chamber and showing the dischargercasing in section. Fig. 7 is a front View of the discharger with theangle-shaped ring ll and the plates 12 removed. Figs. 8 and 9 are,respectively, crosssections taken on lines .fa-Qc and g/-g/ in Fig. 7.Fig. lO is a detail view of a portion of one of the arms 7 and shows thering ll and one of the plates 12 in section.

A is the end portion of the casing of a thrashing machine or separator,which may be of any approved construction adapted to separate the grainfrom the straw and to discharge the straw at the rear end of themachine. y

B is the straw chamber at the'rear end of the thrashing machine forreceiving `the straw and chaff from the separating mech-anism.

B is the discharger casing secured'outside the casing A at one end ofthe chamber B.A

This discharger casing is preferably provided with ashort cylindricalthroat piece h, and b is an offset portion of the chamber B which joinsonto the lower part of the throat piece. The discharger casing ispreferably secured upon one side of the casing of the separatorsubstantially as shown in the Patent. No. 512,553, issued to me onJanuary 9, 189i; but it may be secured on the end of the separatorcasing, or arranged horizontally underneath it, or in any other positionfound most convenient.

C is the discharger shaft journaled in the bearings C which are securedto the casings A and B. The shaft C is provided with the belt pulley ofor revolving it, and the direction of revolution is indicated by thearrows in the drawings.

D is the disoharger secured upon the shaft C, inside the casing B, bymeans of its hub 2 which has a ange 3 at one end, and substantiallyradial Hanges 4 and 5 projecting from its sides. A disk 6 is secured tothe flange 3, andruns close adjacent to the discharger casing. Thelianges 4t are of the same length as the hub and are arranged atopposite sides thereof. The lianges 5 are comparatively narrow and arearranged between the ianges Ll. The hub and the flanges 4 projectthrough the throat piece into the straw chamber.

The discharger is provided with two narrow arms 16 which are secured tothe flanges 5 and run wholly within the discharger casing; Arms 7 aresecured to the iianges 4 and are provided with inclined portions 8 wherethey project through the throat piece, and shoulders 9 inside the casingB near the projecting bead l0 on the end of the throat piece. Anangle-shaped ring 1l is secured on the shoulders 9 and revolves with itsvertical flange in proximity to the said bead. The vertical flange ofthe ring ll is larger in diameter than the opening of the throat pieceso that the annular space between the throat piece and the discharger iscovered laterally and there is no free and unobstructed pas- Y sage forthe air driven off by the discharger from the discharger casing into thestraw chamber. The air in the disoharger casing cannot pass freelythrough the narrow vertical space between the said [lange and beadbecause it has to pass over the top of the flange to get to the saidspace. Curved plates 12 for catching the straw are secured to the ring11 and to the inclined portions 8 of the arms 7, and form portions of acone, the base of which abuts against the vertical flange of the ring11. Each plate 12 has a concave portion 13 in front, commencing at thearm 7 and extending forward in the direction ot' the motion of thedischarger to 'a point on the periphery of the ring 11 a little inadvance of the arm 16. Each plate 12 also has a concave portion 14 atthe rear, commencing at the arm 7 and extending rearward of thedirection of motion to a point on the periphery of the ring 11 abouthalfway between the arms 7 and 16. Concavo-con Vex plates 15 are securedto the concave portions 14 ofthe plates 12 and to the disk 6, and arearranged at right angles to the disk 6. The edges of the plates 15 arecurved in front so as to join onto the concave portions of the plates12, and the rear portions of the plates 15 between the ring 11 and thedisk 6 have rearwardly curved lips 17.

When the discharger is revolved rapidly.

the straw in the straw chamber is drawn through the throat piece betweenthe parts ot the cone and the arms of the discharger, and is flung upthe delivery pipe d which eX- tends vertically to the top ot` the casingA. The discharger also draws in air and forces it up the delivery pipewith the straw, and the current of air thus formed carries the strawthrough the discharge pipe,hereinat'ter fully described, and packs it ontop of the stack. No straw passes between the bead of the throat pieceand the ring 11 because the straw is caught by the projecting concaveportions 13 in front of the plates 12 of the cone, and is flung up thedelivery pipe by the arms 7 and the plates 15. The narrow arms 16 alsocatch the straw which enters freely and lling it up the delivery pipe.The straw which strikes the edges of the narrow arms 16 slides alongthem radially and passes through the spaces 50 between the said arms andthe ring 11. As both the arms and the ring are revolving at the samevelocity, the straw is not crushed or broken as there is no grindingaction between the opposed parts between which the straw passes. Thereare `also no back currents of air through the spaces 50 because the widearms 7 sweep through the whole area of the space between the disk 6 and.the ring 11. There is a very slight back currentof air from thedischarger casing through the space 51 between the ring 11 and the bead10, but this back current is no more than desirable and sufcient to keepthe said space clean.

The plate 15 closes one halfof thedischarge space between each wide arm7 and the next following narrow arm 16, and as there is no air thrownoff from the periphery of the discharger behind the plate 15, the lip 17is made very effectual in propelling the straw around the periphery ofthe discharger casing and tlinging it up the delivery pipe. The bulk ofthe straw is discharged by the wide arms 7, and the rear parts of theplates 15 and the lips 17, while the narrow arms 16 discharge but littlemore than dust, air and some short straw.

The discharger may be constructed with six or more arms, if desired,arranged in a simil'ar manner to those hereinbet'ore described.

I do not limitrnyself to any particular construction of straw chamber ordischarger casing, in carrying out this invention, as those parts may beof any approved form and construction.

The delivery pipe d has a llexible junction pipe d journaled on itsupper end and joining it to the discharge pipe F. The flexible junctionpipe d is constructed so as to permit the discharge pipe F to be movedabout freely in a vertical plane. It may be made in any manner that willpermit it to accomplish its purpose, but it is preferably constructed asshown and described in the Patent No. 514,266, issued to me on February6, 1894.

The discharge pipe F is provided with an upper pipe section F whichslides telescopically over the lower section and enables the length ofthe discharge pipe to be increased or diminished as required.

G isa circular bracket secured to the top ot' the machine casing A, andH is the cylindrical base of the standard H which supports the dischargepipe. Balls g are interposed between the base H and the bracket G, andthe construction of these parts is fully described in a separateapplication, Serial No. 528,204, tiled November 8, 1894. The sides ofthe standard I-I consist of two bars I, and I is a stay chain secured tothe rear part of the base H and to the upper parts of the bars I. Acatch t' secured between the bars l, andthe upper part of the chain Idrops into the said catch and permits the bars I to be set'at differentangles, by lengthening or shortening the stay chain, by slippingdifferent end links into the catch, and turning the bars I upon the pinst" by which they are pivoted to the base- H. A circular toothed rack orworm wheel 20 is formed on the base H, and the standard and dischargepipe are revolved by means of the hand wheel 21 secured on a shaft 22.The shaft 22 is journaled in bearings on the bracket G, and is connectedto the worm wheel bya worin of approved construction.

J is a ring secured to the discharge pipe F, and 7c are longitudinallyarranged tubes or bars secured in bearingsj on the ring J.

K is a ring provided with bearings K which are secured to the upper endsof the tubes 7a. The lower ends 7c of the two lower tubes are passedthrough the bearingsjand are pivoted, by the sockets 24 and the pins 25,to the lugs IOO tog

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26 on the baseH. Stays 27 couple the sockets 24 to the upper part of thering J.

The angle of the discharge pipe is changed and varied by means of awinch J', and a rope jconnected to the said winch and to the upper partof the discharge pipe. The winch is attached to any desired part of thestandard H', and is of any approved construction. The rope j forchanging the angle of the discharge pipe also affords a means forsliding its upper section telescopically as fully decribed and claimedin a separate application,

Serial No. 528,204, led November 8, 1894. The rope j is secured at oneend to the cross piece 30, and two cords 3l are attached to the ends ofthe cross piece and pass over two similar sheaves 3l at the top of thedischarge pipe, and have their lower ends secured to the ring K. Thesetwo cords A3l make the pipe slide steadier than when a rope j passesover a single sheave at the top of the discharge pipe and has its endsecured to the ring K. Two sheaves 32 and 33 are journaled at the top ofthe standard II. Two sheaves 34 and 35are journaled in the bracket 36 onthe upper side of the ring K,\and one sheave 37 is journaled in abracket onpthe upper sidel of the lower end of the pipe section F. Theropej passes from the cross piece 30 around the sheaves 32, 34, 37, 35,and 33, in the order stated, and is attached to the winch. In winding upthe rope to raise the pipe, the various parts of the rope move in thedirections indiend, segment of the deiector.

cated by the arrows in the drawings.

M is the deflector consisting of three or more segments pivoted togetherand to the dis charge pipe, at the end thereof, by the shaft m. Thesegments are U-shaped and their top portions are preferablyconcave-convex in cross-section. At its upper end, the lower side of thedischarge pipe is bent outward forming fiat sides m having bearings nfor the shaft m to revolve in. The upper side n of the pipe isconcave-convex at its end and is concentric with the shaft m so that thesegments may slide back upon it.

N is a spiral spring encircling the shaft m. One end of this spring issecured to the shaft by the pin o, and its other end is bent outward andbears against a stop pin o on the pipe. The tension of this springlnormally holds the detlector in its forward position as shown in Fig. 1of the drawings.

N is a flexible connection, such as a strap or chain, connected to eachsegment of the detlector and to the top of the pipe. This flexibleconnection affords a means for preventing the spring from forcing thesegments of the dedector too far forward, but any other equivalent meansmay be used for effecting the same result.

P is a cord for pulling back the deliector. The lower end of this cordis engaged by a catchp on the lower end of the discharge pipe.

R is a sheave operatively connected to the The cord P passes over thesheave R, and over a sheave S journaled on a pin secured to the lowerendof the pipe section F,and has its other end secured to the ring K. Whensupported in this manner the cord P is not altered in length by thetelescopic movement of the discharge Pip@ l In Fig. 1 the sheave R isconnected to the end segment by a cord t which is carried by the eyes tprojecting from the segments, and has its lower end fastened to theblock o in which the said sheave is journaled.

In Fig. 2 the sheave R is carried by an arm R which is journaled on theend of thev shaft mand is connected to the end segment by the extensionr', so that the cord t is not required.

In carrying out this invention I do not contine myself to the use of thevarious parts in the combination shown. For instance, the dellector maybe used on other 'forms of discharge pipe, and the discharge pipehereinbefore described may be fitted with any other approved form ofdeiiector or deector pipe. The discharger hereinbeforedescrbed may alsobe used in combination; with other approved forms ofdischarge` pipes andtheir operating mechanisms, or any other approved form of discharger`may be substituted forit.

The standard and the tackle for raisingy and telescoping the dischargepipe which I have hereinbefore described and shown in the drawings, arenot hereinafter more fully claimed as the said parts are claimed in theconcurrent application Serial No. 528,204, tiled November 8, 1894.

1. In a pneumatic straw stacker, the combination ,with astraw chamber,and a discharger casing; of a revoluble discharger provided with a diskand arms, portions of the said arms being arranged to project laterallythrough the inlet opening of the discharger casing into the strawchamber; and straw catching devices arranged at the periphery of thedischarger and carried by the projecting portions of the said arms,substantially as set forth.

2. In apneumatic straw stacker, the combination, with a straw chamberprovided with anoffset portion at its lower part, and a dischargercasing provided with a throat piece joining onto the said offsetportion; of a revoluble discharger provided with a disk and arms,portions of the said arms being arranged to project into the offsetportion of the straw chamber; and straw catching devices carried by theprojecting portions of the said arms, substantially as set forth.

3. In a pneumatic straw stack er, the combination, with a straw chamber,and a discharger casing; of a revoluble discharger provided witha diskand with narrow arms and wide arms arranged alternately andsubstantially at right angles to the disk, portions of the wide armsbeing arranged to project into the straw chamber; and straw catching de-IOO IIO

vices carried by the projecting portions of the said wide arms,substantially as set forth.

4. In apneumatic straw stacker, a revoluble discharger, comprising ahub, a disk secured to one end of the hub, arms of different widthsarranged substantially at right angles to the said disk, and strawcatching devices carried by the wider arms, substantially as set forth.

5. In apneumatic straw stacker, a revoluble discharger, comprising ahub, a disk secured to one end of the hub, arms arranged sfubstantiallyat right angles to the said disk and provided with inclined portions 8,a ring secured to the said arms, and curved plates 12, for catching thestraw, secured to the said ring, in conical form, and having concavefront edges 13, substantially as set forth.

6. In a pneumatic straw stacker, a revoluble discharger, comprising ahub, a disk secured at one end of the hub, arms provided with inclinedportions 8, a ring secured to the arms, the curved plates 12, forcatching the straw, secured to the said ring, in conical form, andhaving front and rear concave edgesl 13 and 14, and the concavo-oonvexplates 15 arranged between the concave edges 14 and the said disk,substantiallyas set forth.

7. In a pneumatic straw stacker, the combination, with a dischargercasing provided with a throat piece having an inwardly projecting bead;of a revoluble discharger provided with a disk and arms, portions of thesaid arms being arranged to project through the said throat piece, strawcatching devices carried by the ends of the said arms, and anangleshaped ring secured to the said arms adjacent to the bead on thethroat piece with its vertical lange covering the annular space betweenthe throat piece and the discharger, substantially as set forth.

8. In a pneumatic straw stacker, the combination, with a revolublestandard comprising a cylindrical base, side bars pivoted to the saidbase and provided with a chain catch at their upper ends, and anadjustable stay chain connected to the rear of the said base andengaging with the said catch; of a discharge pipe connected at its lowerend with the said base, and a connection-such as the ropej-arrangedbetween the upper part of the said pipe and the upper part of the saidstandard, substantially as set forth.

9. In a pneumatic straw stacker, the combination, with a supportingstandard; of the rings J and K, and the tubes secured to them; thesockets secured to the projecting ends of the lower tubes and pivoted tothe said base of the standard; the stays secured to the said sockets andto the ring J; and a discharge pipe formed of telescopic sections andsupported by the said rings and standard, substantially as set forth.

10. In a pneumatic straw stacker, the combination, with a discharge pipeformed of telescopic sections, and the rope 7" for sliding the uppersection; of two sheaves journaled at sheaves and having their upper endscon` nected with the said rope, substantially as set forth.

11. In a pneumatic straw stacker, the oombination, with a discharge pipeformed of telescopic sections, and the rings J and Koonnected together,the lower ringJ being secured to thelower pipe section; of a detiectorformed of segments and arranged at the end of the upper pipe section, asheave R operatively connected to the outer end segment of thedeflector, a sheave S at the lower end of the upper pipe section; and acord secured to the ring K at one end, passing over the sheaves S and R,and having its other end supported at the lower end of the dischargepipe, substantially as set forth.

l2. In a pneumatic straw stacker, the combination, with a dischargepipe, of a deflector Vformed of U-shaped segments pivoted to the lowerpart of the pipe at its upper end, means for preventing the defiectorsegments from sliding too far forward, and a spring normally holding thesaid segments extended, substantially as set forth.

13. In a pneumatic straw stacker, the combination, with a dischargepipe, of a deilector formed of U-shaped segments, a shaft pivoting thesaid segments to the lower part of the pipe at its upper end, means forpreventing the said segments from sliding too far forward, and a spiralspring encircling the said IOC) shaft and normally holding the saidsegments extended, substantially as set forth.

14. In a pneumatic straw stacker, the combination, with a dischargepipe, of a deflector formed of U-shaped segments pivoted to the lowerpart of the pipe at its upper end, means for preventing the segmentsfrom sliding too far forward, a spring normally holding the saidsegments extended, an arm connected to the end segment of the deiiector,a sheave carried by the said arm, and a cord passing over the saidsheave and affording a means for retracting the said segments,substantially as set forth.

15. In a pneumatic straw stacker, the combination, with a dischargercasing having a throat piece at one side for the straw to enter; of arevoluble discharger provided with a disk and arms of .different widths,and a ring se-y cured to the wider arms and revolving in proximity tothe inner end of the said throat piece, substantially as set forth.

16. In a pneumatic straw stacker, arevoluble discharger, comprisingahub, a disk at one end of the hub, arms of dierent widths, and a ringsecured to the wider arms parallel with the disk, spaces 50 being formedbetween the edges of the narrow arms and the ring, for the straw to passthrough, substantially as set forth. t

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17. In a pneumatic straw stacker, arevoluble disoharger, comprisingahub, a disk at one end of the hub, arms of dierent widths, and platesprovided with projecting lips and clos- 5 ing part of the peripheraldischarge space be- Witnesses:

tween each wide arm and the next following L. I-I. LANDIS, narrow arm,substantially as set forth. A CLAYTON BECKNER.

In testimony whereof affix my signature in presence of ltwo witnesses.

FRANK F. LANDIS.

